Lounge base end portion



FIG. 1 is a front perspective view of a lounge base end portion in accordance with my new design;

FIG. 2 is a front view thereof;

FIG. 3 is a side view thereof; and,

FIG. 4 is a rear view thereof.

The broken lines shown in the drawings are included for the purpose of illustrating unclaimed portions and form no part of the claimed design. 

CLAIM The ornamental design for a lounge base end portion, as shown. 